santa rosa waking up to 29. napa, 27. 31 fairfield, concord and livermore, if you think that is cold. wait until what you see what is coming up. >> thank you. >> we have seen the sun but it was crisp in places. >> sure. carolyn tyler joins us live now. it's expected to get close to freezing mark later tonight. carolyn? >> well, larry this is the first time i've had to pull on my heavy coat. very needed it off and on today. you can see from the board behind me, it's doing okay right now in walnut creek. so it's expected to be down right cold tonight. since it cold, let's check out the pool. diablo solar services has about 25,000 customers using water insulated solar panels to heat pools. >> this water in the panels. panels in this home are being trained nochlt pools but you have plants like citrus? well, you might want to buy protective spray or a blanket from pleasant hill. >> what >> temperatures above freezing. sxiet the fact we haven't had a three to degree mark. sometimes, frost can settle on plants when it'